Vapor heating system.



J. DE W. ARNOLD. VAPOR HEATING SYSTEM..

APPLIOATION FILED 00T. 2s, 1907.

WTNESSES UNITED sTATEs PATENT oEEicE.

JOHN DE WITT ARNOLD, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO VAPOR HEATING COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

VAPOR HEATING SYSTEM.

Specicaton or Letters Patent.

Patented Jan. 12, 1909.

Application filed October 23, 1907. Serial No. 398,762.

To all whom 'it may concern:

Be it known that I, JOHN DE WITT ARNOLD, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia, State of Pennsylvania, have invented certain new and useful Improvements in Vapor Heating Systems, of which the following is a description, reference being had to the accompanying drawing, and to the letters and figures of reference marked thereon.

This invention relates to vapor heating systems, such as shown and described in my Patent N o. 650,778, granted May 29th, 1900. In this system, the vapor ascends in the supply pipes, and enters the radiators in 'a natural way, and not by force or pressure. Air and condensation are removed from the radiators through return pipes, and delivered into a receiver from which the water returns to the boiler by gravity, while the air is carried up through an air line into condensing coils, and thence into the chimney. While this form of radiator, wherein the air and condensation pass out through the same opening, is practical, and can be successfully operated, I have found that there are certain advantages in taking the air from the radiator at a point distant from the outow of condensation.

The object of my invention, therefore, is to provide a radiator of the above character, with an air outlet, which is connected to said radiator at a point above its horizontal center.

A further object of the invention is to provide an air outlet which is connected with the return pipe, and sealed against the return of the air into the radiator at the lower part thereof.

These and other objects will in part be obvious, and in part be more fully hereinafter pointed out.

In the accompanying drawings, Figure 1 is an elevation of a radiator, provided with an air vent and return connection constructed in accordance with the invention; Fig. 2 is a detail view of the return connection, drawn to an enlarged scale; Fig. 3 is a transverse sectional View on the line 3-3 of Fig. 2.

Similar numerals of reference are employed to designate corresponding parts throughout the several figures of the drawing.

The radiator 10 is of the ordinary construction, and the upper end of its inlet side is connected to a vapor supply pipe 11, through the medium of a valve 12. The water of condensation returns to the receiver and thence to the boiler, through the return connection 15, arranged at the lower end of the discharge side of the radiator.

The return connection 15 is in the form of a trap, having a downwardly extending water-receiving chamber 16, from each side of which extend nipples or couplings 17, for connection with the radiator and the return pipe, and these connections are disposed in the same horizontal plane.

At the top of the fitting is an integral boss, from which depends a partition 19, terminating short of the bottom of the casing 16.

rThe upper portion of the boss is tapped for the reception of the lower end of an air vent tube 20, which leads from the nal section of the radiator, and is connected to the latter preferably at some distance above its horizontal center.

Extending through the boss is a small opening 22, which leads into the casing 16 at the discharge side of the latter.

The trap is at all times filled with water up to the level of the bot-toms of the nipples or other connections. The air escapes from the radiatol1 through the vent tube 20, and as said tube is connected to the return pipe at a point beyond the water seal, no air can return into the radiator at the bottom. I am, therefore, able to draw from the radiator the air contained therein, and thus allow the radiator to be quickly filled with 'he heated vapor.

Owing to the fact that the air outlet is connect-ed with the chimney, considerable suction is caused, which will aid in freeing the radiator of air.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

The combination of a radiator, an inlet pipe, a supply pipe connected thereto, an independent return fitting connected to said radiator including a casing having coupling connections at its opposite side, a coupling connection on the Vupper side ofV said casing, said Ycasing having a partition connected to the central upper portion thereof and eX- tend downwardly and terminating short ofthe ing an opening leading om the coupling at the upper side ofthe casing into the casing at theV discharge side of the partition, and a vent pipe lead-ing from said coupling f m of the casing? said casing'hayy In testimony whereof I aix my signature,

in presence of twoy witnesses.

Y JOHN DE WITT ARNOLD. Y

Witnesses: Y

EARL M. BAKKER, JAS. FIELEMEYER. 

